This is the Kovac's second child. Despite the smiles, it has been a tough road.
"I was pretty nervous about what other people thought, and how they would see my struggles, or be concerned about whether I'm a good enough mother or not, or if my children were in danger," she said.
Kovac was born with a condition called Arthrogryposis Multiplex Congenita, AMC for short.
It is a rare joint disorder that has prevented her from using her arms.
"The second time around has been so much more fun because I'm not worried about all the logistics of how to pickup a baby, and how to put on the diaper and the car seat," Kovac said.
Kovac may not be able to use her arms, but that has not stopped her from fulfilling her motherly duties, like changing diapers.
"I do enough stuff with my feet anyway, that this is just sort of, it would be like saying, how did you figure out how to do that with your hands, it's just what I do," she said.
She says her kids keep her going, and help turn her weakness into a strength.
"My flaws teach my children wonderful things that I wouldn't be able to teach them if I had a perfect body," she said.
"There's nothing else more important than her kids, and it's just really amazing to watch, and at the same time makes me feel blessed that I get to be a part of that," said Adam Kovac, Sarah's husband.
Kovac says she struggles, from time to time, with her condition. However, the hugs from her son, and smiles from her daughter make it all worthwhile.
"She has achieved a lot that most people still, today, are probably trying to achieve," said Adam.
"It changed how I see myself, and it changed the way I interact with the world," said Sarah.
Kovac published a book titled: "In Capable Arms: Living A Life Embraced by Grace."
To read more about Sarah, click here.